Improve contributing docs
Improve contributing docs

BayanGroup/sentry,JamesMura/sentry,mvaled/sentry,zenefits/sentry,JTCunning/sentry,kevinastone/sentry,nicholasserra/sentry,mvaled/sentry,JackDanger/sentry,felixbuenemann/sentry,SilentCircle/sentry,nicholasserra/sentry,JackDanger/sentry,fuziontech/sentry,songyi199111/sentry,pauloschilling/sentry,ifduyue/sentry,BuildingLink/sentry,wujuguang/sentry,mitsuhiko/sentry,JackDanger/sentry,JamesMura/sentry,looker/sentry,wujuguang/sentry,felixbuenemann/sentry,NickPresta/sentry,kevinlondon/sentry,1tush/sentry,BuildingLink/sentry,alexm92/sentry,llonchj/sentry,looker/sentry,mvaled/sentry,ewdurbin/sentry,argonemyth/sentry,ifduyue/sentry,BayanGroup/sentry,fotinakis/sentry,hongliang5623/sentry,BuildingLink/sentry,drcapulet/sentry,looker/sentry,drcapulet/sentry,pauloschilling/sentry,korealerts1/sentry,ewdurbin/sentry,jokey2k/sentry,Kryz/sentry,ifduyue/sentry,Natim/sentry,TedaLIEz/sentry,camilonova/sentry,TedaLIEz/sentry,BuildingLink/sentry,ewdurbin/sentry,daevaorn/sentry,gencer/sentry,camilonova/sentry,jokey2k/sentry,ngonzalvez/sentry,imankulov/sentry,daevaorn/sentry,rdio/sentry,vperron/sentry,jokey2k/sentry,JTCunning/sentry,vperron/sentry,daevaorn/sentry,mvaled/sentry,camilonova/sentry,fuziontech/sentry,Kryz/sentry,BuildingLink/sentry,beeftornado/sentry,beni55/sentry,beni55/sentry,jean/sentry,mitsuhiko/sentry,songyi199111/sentry,beeftornado/sentry,boneyao/sentry,vperron/sentry,imankulov/sentry,BayanGroup/sentry,alexm92/sentry,zenefits/sentry,drcapulet/sentry,alexm92/sentry,gencer/sentry,JamesMura/sentry,jean/sentry,felixbuenemann/sentry,boneyao/sentry,ifduyue/sentry,Natim/sentry,ngonzalvez/sentry,jean/sentry,SilentCircle/sentry,kevinlondon/sentry,JamesMura/sentry,wong2/sentry,wong2/sentry,rdio/sentry,looker/sentry,daevaorn/sentry,jean/sentry,zenefits/sentry,wong2/sentry,nicholasserra/sentry,kevinlondon/sentry,hongliang5623/sentry,songyi199111/sentry,fotinakis/sentry,korealerts1/sentry,kevinastone/sentry,SilentCircle/sentry,gg7/sentry,mvaled/sentry,fotinakis/sentry,beeftornado/sentry,SilentCircle/sentry,boneyao/sentry,gencer/sentry,zenefits/sentry,jean/sentry,ngonzalvez/sentry,kevinastone/sentry,korealerts1/sentry,NickPresta/sentry,fotinakis/sentry,Kryz/sentry,looker/sentry,TedaLIEz/sentry,llonchj/sentry,wujuguang/sentry,gg7/sentry,zenefits/sentry,gg7/sentry,JTCunning/sentry,JamesMura/sentry,1tush/sentry,argonemyth/sentry,rdio/sentry,gencer/sentry,imankulov/sentry,gencer/sentry,NickPresta/sentry,llonchj/sentry,mvaled/sentry,fuziontech/sentry,hongliang5623/sentry,rdio/sentry,Natim/sentry,ifduyue/sentry,1tush/sentry,beni55/sentry,argonemyth/sentry,pauloschilling/sentry,NickPresta/sentry